A comprehensive Java practice repository covering fundamental to advanced topics including multithreading, network programming, and data structures with practical mini-projects.

├── Collection Framework/ │ ├── HashMap & HashSet implementations │ └── Student Management System (Serialization + File I/O) ├── Multithreading/ │ ├── Inter-Thread Communication │ ├── Monitor and Synchronized blocks │ ├── Producer-Consumer pattern │ └── Multithreaded ATM (ReentrantLock) ├── Network Programming/ │ ├── TCP Communication (Reverse Echo Server) │ ├── UDP Communication (Datagram) │ └── Multi-threaded Server └── Others/ └── Miscellaneous exercises 

• HashMap & HashSet implementations
• Student Management System - Object persistence with Serialization and File I/O

• Inter-Thread Communication
• Monitor and Synchronized blocks
• Producer-Consumer pattern
• Multithreaded ATM - Thread-safe operations with ReentrantLock

• TCP Server - Reverse Echo implementation
• UDP Communication - Datagram programming
• Multi-client Server - Handling concurrent connections

# Compile Java files javac Multithreading/ATM/*.java # Run the program java Multithreading.ATM.Main

Ehsanul Haque Siam - @EhsanulHaqueSiam

MIT License